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Hi baldfat, I tried to be very careful with that wording. I'm not aware of storage platforms that allow you to embed actions into the I/O path using your own c
by cloudgeek 11y ago
Hi baldfat, I tried to be very careful with that wording. I'm not aware of storage platforms that allow you to embed actions into the I/O path using your own code. If you have examples where I am incorrect, please do share. Thanks!
- MartinMond 11y ago> kvpbase also allows you to program it - tell it what to do when data is read, written, or deleted - so you can offload heavy tasks from your app. Isn't that exactly what "every database ever" calls triggers? From the Postgres docs: http://www.postgresql.org/docs/9.4/static/trigger-definition.html http://www.postgresql.org/docs/9.4/static/trigger-definition... > A trigger is a specification that the database should automatically execute a particular function whenever a certain type of operation is performed. Triggers can be attached to tables, views, and foreign tables. Even NoSQL DB's like redis or riak have the ability to execute user-supplied Lua resp. Erlang. http://docs.basho.com/riak/latest/dev/advanced/commit-hooks/ http://docs.basho.com/riak/latest/dev/advanced/commit-hooks/ http://redis.io/commands/EVAL http://redis.io/commands/EVAL
- cloudgeek 11y agoYes, but this isn't a database, it's an object store. Block, file, and object storage platforms have yet to implement similar functionality. Block and file platforms are in particular very closed.
- MartinMond 11y agoWhat about riak's pre-commit hooks?
- cloudgeek 11y agoAppears to be only related to the write path, i.e. pre-write and post-write. Doesn't do anything for read, delete, rename, search. Also seems to be largely focused on validation. Thank you for pointing this out though.
- KaiserPro 11y agoNot really, Block systems are just glorified key:value databases. Here are a few scalable open source block/object storage systems: Lustre Ceph tahoe-lafs XtreemFS These are all opensource. For example, if I wanted a fast global-coherent CDN, then all I need are webservers and GPFS, with some glue code to allow auth'd uploads/deletes. geographically scalable, with tiered storage levels. If you want to run on dodgy hardware, then use XtreemFS. but you'll pay a performance price. I'd be interested in a comparison in developer language(as in graphs code examples etc.), with a github link or similar.
- cloudgeek 11y agoWe might not be using the same definition for "block". Happy to chat offline if you'd like to email me (joel@maraudersoftware.com). Cheers